Jamala, who swept to victory in Stockholm last year with her song 1944, was returning to the Eurovision stage during a break between the final performance and the beginning of scoring.

A similar incident occurred at the 2010 competition in Norway when the Spanish entry had to perform for a second time following a stage disturbance.

Dressed in a hat to match the backing dancers’ distinctive outfits, an impostor reported to be Barcelona fan and sports event invader Jimmy Jump joined in the choreography before being removed by security.